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This project is a structured Node.js programming course and educational guide designed to teach JavaScript backend development. It provides a sequence of workshops and interactive tutorials that focus on the fundamentals of the Node.js runtime and its core modules. The material emphasizes asynchronous programming, specifically covering non-blocking I/O, callback patterns, and event-driven architecture. It includes a practical exploration of the core API for managing network applications, file system operations, and binary data. The curriculum covers module management and dependency resolutio

Proxygen is a collection of C++ libraries for building high-performance HTTP servers and clients. It provides a protocol parser that converts raw network bytes into high-level transaction objects and includes a network stack for processing web traffic over the QUIC transport protocol. The project implements a layered protocol abstraction and a QUIC-based transport integration to support multiple versions of the HTTP standard, including HTTP/3. It utilizes state-machine based parsing and an event-driven I/O loop to manage concurrent network connections. The library covers asynchronous buffer

WeixinBot is a framework for WeChat account automation and bot development. It provides a programmable interface to monitor incoming messages and trigger automated actions within the WeChat ecosystem. The system emulates a browser session using a WebSocket-based protocol and establishes identity through QR code authentication. It maintains session-state persistence to keep accounts active without repeated verification. The project covers message processing for text, images, voice notes, and location data, and supports the transmission of emojis and links. It includes utilities for user conta

Beast es una librería de C++ para implementar clientes y servidores HTTP y WebSocket de bajo nivel. Funciona como un framework de red asíncrono diseñado para componer operaciones de E/S sin bloqueo y pilas de flujo en capas para gestionar el tráfico de red concurrente, utilizando específicamente el modelo asíncrono de Boost.Asio. La librería proporciona una implementación completa de los protocolos HTTP/1.1 y WebSocket. Para HTTP, incluye primitivas para analizar y serializar mensajes con soporte para codificación de transferencia fragmentada, lectura incremental del cuerpo y canalización de solicitudes. Su implementación de WebSocket cubre el ciclo de vida completo de la comunicación bidireccional, incluyendo apretones de manos, negociación de subprotocolos, fragmentación de mensajes y monitoreo de actividad mediante tramas de control. Beast incluye un conjunto especializado de herramientas para la gestión de buffers de red para optimizar la E/S de dispersión-recopilación a través de buffers de memoria dinámicos y basados en secuencias. También cubre la comunicación de red segura mediante la integración de capas SSL/TLS para flujos cifrados, autenticación de certificados y terminación segura de conexiones. El framework proporciona abstracciones multiplataforma para E/S de archivos y gestión de señales del sistema para apoyar el desarrollo de aplicaciones de red estables.

evpp is a C++ network library and framework designed for building high-performance network services using TCP, UDP, and HTTP protocols. It provides an asynchronous event loop to manage nonblocking I/O operations and concurrent network connections across multiple threads. The framework includes specialized tools for asynchronous DNS resolution and a system for asynchronous task scheduling using a managed thread pool. It also features a nonblocking HTTP server and client with integrated connection pooling. The project covers low-level transport layer connectivity for TCP and UDP, as well as hi

The Datadog Agent is an infrastructure monitoring agent and host telemetry collector. It functions as a background process that gathers system metrics and application health data to send to a centralized monitoring platform. The project operates as a plugin-based metric collector, using a modular system of independent check scripts to gather data from various third-party services and applications. It serves as a remote telemetry transmitter, providing a pipeline to stream infrastructure and system information to a remote analysis and alerting backend. Its capabilities cover application perfo

This project provides a browser-based media player and server-side bridging component designed to render live network camera feeds directly within web applications. By utilizing standard browser media APIs, it enables the playback of video streams without the need for external plugins or proprietary software. The system functions by routing raw network camera data through a server-side proxy that translates specialized protocols into browser-compatible formats. This bridge facilitates real-time media delivery by managing network traffic and decapsulating stream headers directly within the bro

Tiramisu is a polyhedral C++ compiler framework designed to express and optimize data-parallel algorithms for diverse hardware accelerators. It provides a programming interface that allows developers to define mathematical expressions, manage loop iteration spaces, and organize functions targeting heterogeneous architectures. The system features an advanced compilation infrastructure that abstracts computations into a hardware-agnostic intermediate representation before lowering them into native machine code or hardware configuration bitstreams. It calculates exact data flow dependencies thro